import router from './router';
import store from './store';
import NProgress from 'nprogress'; // Progress 进度条
import 'nprogress/nprogress.css';// Progress 进度条样式
import {Message} from 'element-ui';
import {getToken} from '@/utils/auth';// 验权
function hasPermission(roles, permissionRoles) {
  if (roles.indexOf('admin') >= 0) return true;
  if (!permissionRoles) return true;
  return roles.some(role => permissionRoles.indexOf(role) >= 0);
}
const whiteList = ['/login']; // 不重定向白名单

router.beforeEach((to, from, next) => {
  NProgress.start();
  if (getToken()) {
    if (to.path === '/login') {
      next({path: '/'});
    } else {
      if (store.getters.roles.length === 0) {
        store.dispatch('GetInfo').then(res => { // 拉取用户信息
          const roles = res.data.roles;
          store.dispatch('GenerateRoutes', {roles}).then(() => { // 生成可访问的路由表
            router.addRoutes(store.getters.addRouters); // 动态添加可访问路由表
            next({...to, replace: true}); // hack方法 确保addRoutes已完成 ,set the replace: true so the navigation will not leave a history record
          });
          next();
        }).catch(() => {
          store.dispatch('FedLogOut').then(() => {
            Message.error('验证失败,请重新登录');
            next({path: '/login'});
          });
        });
      } else {
        // 没有动态改变权限的需求可直接next() 删除下方权限判断 ↓
        if (hasPermission(store.getters.roles, to.meta.roles)) {
          next();
        } else {
          next({path: '/403', replace: true, query: {noGoBack: true}});
        }
        // 可删 ↑
      }
    }
  } else {
    if (whiteList.indexOf(to.path) !== -1) {
      next();
    } else {
      next('/login');
      NProgress.done();
    }
  }
});

router.afterEach(() => {
  NProgress.done(); // 结束Progress
});
